题目内容

In an HMA, which parameter will always increase as asphalt binder content increases？

A. VFA
B. VMA
C. VTM
D. Marshall Stability

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Which of the following methods could always increase the high temperature stability of asphalt concrete?

A. Using more coarse aggregate in an asphalt concrete
B. Using more fine aggregate in an asphalt concrete
C. Using a low penetration grade asphalt binder
D. None of above

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Which is the not the main component of PCC?

A. Hydrated cement
B. Coarse aggregate
C. Fine aggregate
D. water

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The required compressive strength of PCC is measured at

A. 3 days
B. 7 days
C. 14 days
D. 28days

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When the water cement ratio exceeds the specified maximum requirements, what of the following statement is right？

A. Strength will higher
B. Workability will be better
C. Stiffness will be higher
Durability is better

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In an HMA, which parameter will always increase as asphalt binder content increases？

A. VFA B. VMA C. VTM D. Marshall Stability

Which of the following methods could always increase the high temperature stability of asphalt concrete?

Which is the not the main component of PCC?

The required compressive strength of PCC is measured at

When the water cement ratio exceeds the specified maximum requirements, what of the following statement is right？

A. VFA
B. VMA
C. VTM
D. Marshall Stability